Improvement in shuttle-motions for looms



3 Sheets-Sheet 1.

e; CUTHBERT; Shuttle-Motion for Looms.

No. 216,947. Patented July 1, I879.

INVENTOR:

".FETERS, PHOTD-UTHOGRAPHER wAsmNsroN, 01C.

3 Sheets-Sneen 2.

G. C UTHBER T. .Shuttle-Motion for Looms.

No. 216.947 Patented Julv1. 1879.

N.PETER5, FHOTmLITHOGRAPHER. WASHINGTON. 0, CV

I G. CUTE-BERT.

Q I Shuttle-Motion for Looms. No. 216,947, Patented Jun/1,1879.

a I I; A

WITNESSES: lNVENTOR:*

y zm A ah 4 S MPETERS, PHDTO-LITHOGRAPHER. WASMINGTQN. D c.

UNITED STATES PA ENT ()FFlGEl.

GEORGE OUTHBERT, or MATTEAWAN, AssIenoR or ONE-HALF HIS RIGHT TO CHARLESH. KIMBALL AND WILLIAM G. KIMBALL, on NEWBURG,

NEW YORK;

IMPROVEMENT IN SHUTTLE-MOTIONS FOR LOOMS.

Specification forming part of Letters Patent No. 216,947, dated July 1,1879; application filed June 26, 1878. v

To all whom it may concern:

Be it known that I, GEORGE GUTHBERT, of Matteawan, in the county ofDutchess and State of New York, have invented a Direct- Power Loom,ofwhich the following is a specification.

The object of my invention is to provide a loom for weaving low stockwith a mechanism which keeps the shuttle within the continuous controlof the driving-power, so that at any point in its course through therace the shuttle is firmly held on the shuttle-carrier, and

. that no throwing of the shuttle is needed at either end. The motion ofthe shuttle must be such as will not interfere with the vibration of thelay, the shuttle must have passed out the warp before the lay closes upthe race,

and its speed must be so arranged that its lay, and which are driventhrough appropriate connecting mechanism by the eccentricgearing. On theupper side of the carrier are three rollers, and winding between them isa stationary chain, stretched through the lay, said rollers being soarranged as to form a bend in the chain. This chain, being provided withpointed pins in its joints, projecting one to one and one-half inchabove the chain, 'islifted up by the shuttle-carrier. when passingalong, and the pins project through thelower shed. The shuttle, beingprovided at its bottom with a roller corresponding with the bend in thechain around the middle roller, sits on the carrier, with the threads ofthe lower shed between the shuttle and carrier, and the points of thechain, fittingaround the roller on the shuttle, keep the same inposition on the carrier while the carrier is movrefer to theaccompanying drawings, in three sheets, in which Figure l on Sheet 1 isa side view of a loom embodying a modification of my shuttle mechanism.Fig.2 on Sheet 2 is a plan of the same. Fig. 3 on Sheet 2 is a plan ofthe shuttle lifted from'its position on the shuttleicarrier. Fig. 4 onSheet 2 is a sideview of the chain with the projecting points. Fig. 5 onSheet 3 is a plan view of a loom embodying my improved shuttle-operatingmechanism in its simplest and preferred form. Fig. 6 on Sheet 3 is asideview of the same.

Similar letters of reference marked on the different sections denote thesame parts.

In the drawings are left out all parts of the loom which are not neededto show the device for moving the shuttle. All cams for the change ofthe shed at the proper time and allrollers for the yarn or finishedcloth are omitted.

Proceeding with the description of the drawin gs on Sheet 3, A Arepresent the side frames of the loom, with braces, 860., to hold theframes in position. S is the shaft, which, by its two cranks, c and cand connectionsO 0, cause the vibrations of the lay around the axis X.

gear with the pinion P, the shaft Q turns slow, V and keeps increasingin speed until the teeth.

at the largest radius are in gear with the pinion P, when the shaft Qturns quickest, and its motion decreases until a whole revolution of thewheel E is completed. This repeats itself at every revolution of theshaft S vAt the lower end of shaft Q is fastened a horizontalsprocket-wheel, F from which the motion is transmitted to a smallercorrespond ing sprocket-wheel, F by a chain, B; F is on the lowest endof a vertical shaft, D, the upper end of which, D, is vibrating with thelay around the axis X; The upper end of the shaft D is guided in thelay, and carries a small horizontal sprocket-wheel, 2', over which runsa chain, L, the whole length of the lay over another wheel or pulley, atthe other end of the lay. At one point in this chain L is fastened avertical pin, a, which enters into a transverse slot in the bottom plateof the shuttle carrier or driver H, and which pulls the shuttle carrierH forward and backward through the lay.

The length of travel of the shuttle-carrier H isdetermined by thedistance of the two outer edges of the wheels 1' and 2' over which thepin a has to pass on every passage forward or backward. For every onesuch passage either way, the shaft S makes one revolution, the lay makesone vibration, and one change of shed takes place when the carrierarrives at either end, and before the shuttle starts on a new' passagethrough the race. Therefore the mechanism. to move the shuttle must bepositive, that no slipping of the chain and no change of time can takeplace when the machine is in operation.

The irregularity of the motion is accomplished by the eccentric orellipticgearing E and pinion P and as the shuttle has to travel fastestwhen in the middle of the race, the

teeth of the gear E farthest away from the center of shaft S have to bein gear with the teeth of the pinion I? when the shuttle is in thatposition.

' The more eccentric or elliptic the gear E is,

the greater is .the diii'erence in the speed and if the difference inspeed is not suffioient, which can be got by employing oneeccentricgear, E and one pinion,,]? the difference can be increased byrepeating the same, as shown in Fig. 1 on Sheet 1. In this case thepinion P is loose on its shaft, and acts as an intermediate gear todrive the second eccentric-wheel, E which is a duplicate of E. Thissecond wheel, E gears into a second vertical pinion, P which is fast onthe shaft Q, and which has the same number of cogs as P. These two gearsE and E are placed in such a position that if the teeth at the longradius in E are in contact with pinion P, at that time the teeth at theshort radius of E are in the same pinion P', and the teeth at the longradius of E are in gear with the pinion P that is, at that time theshaft Q is turning at its fastest. possible speed, and twice faster thanit was possible with only one pair of cocentric-wheels, E and I.

If the cogs at the short radius of E are in operation, the pinion P isengaged with its cogs at the long radius in E and the opposite side of Eis turning the pinion 19 ,013 the shaft Q is turning at its slowestspeed, and only .The chain Oh is a stationary chain, fastened at eachend, stretched through the lay, and the pins connecting the linksproject about one to one and one-half inch above the chain,

and are pointed at the-ends. A The shuttle Sh sits on the carrier H, and

has attached a roller, 1 at the bottom, which fits right over the roller1" on the carrier, so that the pins a n of the chain pass close aroundthe roller 1", and through a slot left in the bottom of the shuttle.This curve in the chain Oh holds the shuttle Sh in its position on thecarrier, while two small friction-roll ers, r r, on the side of theshuttle prevent :any great friction of the shuttle against the reed G.

The shuttle is not held to the carrier by any other means. Therefore thewarp can always move while the shuttle is moving through the race. I Thechain Oh,by its own weight, sags down so that the points at n of thechain are below the lower shed, and only where the chain is running overthe carrier it is raised enough that the points '11, a catch around theroller r at the bottom of the shuttle to hold it in position.

Instead of a chain, L, to drive the carrier H, a belt may be used, inwhich case the driving-pulley i is provided with pins 011 its face aboutone inch apart, and corresponding holes arc punched in the belt toprevent slipping of the belt, as the motion must be positiye.

In Fig. 2 on Sheet 2 the loom is represented more complete, showing inPu the pulley for the moving power; F, the friction-clutch by which theloom is started S the cam-shaft, driven by the gears W W which shaftdrives all cams, rollers, 850., of the loom.

From the wheel W the pinion W on shaft S derives its motion, and on thesame shaft is the crank-wheel O, with crank-pin 0 while a similarcrank-pin, 0 is in the pinion W These pins 0 0 work in a slot, Si, inthe swords M, Fig. 1, and cause the vibration of the lay.

The wheel W drives another one of same size, W on shaft N, which shaftcarries the elliptic or eccentric wheel E, from which all the othergearing is driven, which actuates the shuttle in the same manner asdescribed before.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The eccentric or el liptic whee-1 E the provided with rollers "r r W,pinion P and'mechanism for actuating the substantially as described, foractuating the same, in combination with the shuttle-carrier same, forthe purpose set forth. H shuttle Sh and connecting mechanism subrstantially as and for the purpose set forth. GEORGE (JUTHBERD' 2. Thestationary chain Oh, provided with the Witnesses: points n n, and theshuttle Sh, having roller J. W. GEREGKE, T in combination with theshuttle-carrier H, GEORGE DIEMER.

and mechanism,

